package finger.web;

import finger.domain.Book;
import finger.domain.Page;
import finger.service.BookService;
import finger.service.impl.BookServiceImpl;
import finger.utils.WebUtils;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class ClientServlet extends BaseServlet {
    BookService service = new BookServiceImpl();


    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    protected void page(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
        int pageNo = WebUtils.parseInt(req.getParameter("pageNo"), 1);
        int pageSize = WebUtils.parseInt(req.getParameter("pageSize"), Page.PAGE_SIZE);
        Page<Book> page = service.page(pageNo, pageSize);
        page.setUrl("client/clientServlet?action=page");
        req.setAttribute("page", page);
        req.getRequestDispatcher("/pages/client/index.jsp").forward(req, resp);
    }

        protected void pageByPrice(HttpServletRequest req, HttpServletResponse resp)throws IOException, ServletException{
        int min = WebUtils.parseInt(req.getParameter("min"), 0);
        int max = WebUtils.parseInt(req.getParameter("max"), Integer.MAX_VALUE);
        int pageNo = WebUtils.parseInt(req.getParameter("pageNo"), 1);
        int pageSize = WebUtils.parseInt(req.getParameter("pageSize"), Page.PAGE_SIZE);
        Page page = service.pageByPrice(pageNo, pageSize, min, max);
        StringBuilder sb = new StringBuilder("client/clientServlet?action=pageByPrice");

        if(req.getParameter("min")!=null){
            sb.append("&min="+req.getParameter("min"));
        }
        if(req.getParameter("max")!=null){
            sb.append("&max="+req.getParameter("max"));
        }
        page.setUrl(sb.toString());
        req.setAttribute("page",page);
        req.getRequestDispatcher("/pages/client/index.jsp").forward(req,resp);

    }
//    protected void pageByPrice(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        //1 获取请求的参数 pageNo 和 pageSize
//        int pageNo = WebUtils.parseInt(req.getParameter("pageNo"), 1);
//        int pageSize = WebUtils.parseInt(req.getParameter("pageSize"), Page.PAGE_SIZE);
//        int min = WebUtils.parseInt(req.getParameter("min"), 0);
//        int max = WebUtils.parseInt(req.getParameter("max"), Integer.MAX_VALUE);
//
//        //2 调用BookService.page(pageNo，pageSize)：Page对象
//        Page<Book> page = service.pageByPrice(pageNo, pageSize, min, max);
//
//        StringBuilder sb = new StringBuilder("client/bookServlet?action=pageByPrice");
//        // 如果有最小价格的参数,追加到分页条的地址参数中
//        if (req.getParameter("min") != null) {
//            sb.append("&min=").append(req.getParameter("min"));
//        }
//        // 如果有最大价格的参数,追加到分页条的地址参数中
//        if (req.getParameter("max") != null) {
//            sb.append("&max=").append(req.getParameter("max"));
//        }
//        page.setUrl(sb.toString());
//        //3 保存Page对象到Request域中
//        req.setAttribute("page", page);
//        //4 请求转发到pages/manager/book_manager.jsp页面
//        req.getRequestDispatcher("/pages/client/index.jsp").forward(req, resp);
//    }
}
